813 valves

[slowmotion]

Hi all

I really like the 813

Any one on this list use 813s
in their amps ?

[dhaen]

James suggested I use some in this thread:
Best PSU.


What do you use them for?

Cheers,

[7N7]

Originally posted by slowmotion
Hi all

I really like the 813

Any one on this list use 813s
in their amps ?

Hello,

As I write this, I am wearing a T-shirt with an 813 on it albeit very faded.

I have been playing with 813s since 1997. I have a p-p amplifier in which the 813s are driven by a 6SN7 DC coupled to a 6BX7 which sits on an EL822 pentode sink.

What would you like to know?

7N7

[slowmotion]

Hi all

I use the 813 in SE , with 10Y as driver
Amp is used from midrange and up

dhaen, tried your link, but didn't find anything there?
You have a nice webpage, though

7N7, hi, we know each other from joelist, I think?
T-shirt with 813, sounds cool

[dhaen]

7N7,

As I write this, I am wearing a T-shirt with an 813 on it

You're more of an "anorak" than me then...

Cheers,

[dhaen]

Hi Slowmotion,

The link was to a DIT audio thread where the attached schematic was posted.

Thank you for your comment on my (simple) webpages.

I had been looking for the 813 spec. I found this link on Bas Horneman's site:

http://homepages.ihug.co.nz/~rwillis/alex/

Looks interesting, do you run it in pentode or triode mode?

Cheers,

[Bas Horneman]

My 813 shrine. ;-)

http://home.zonnet.nl/horneman/813.htm

If anyone has something to add...just mail it to moi and I shall post.

By the way John...I have been looking forward to your 1250v psu...But could not view the attachement on your previous post..

Cheers,
Bas

[7N7]

Originally posted by slowmotion
Hi all

I use the 813 in SE , with 10Y as driver
Amp is used from midrange and up

dhaen, tried your link, but didn't find anything there?
You have a nice webpage, though

7N7, hi, we know each other from joelist, I think?
T-shirt with 813, sounds cool

10Y has a good reputation; I sold the pair I had to another Joelister; now that I have a distortion test set, so we will test them for inherent distortion - it's supposed to be very low. If they are good then they'll be better than the oscillator in the test set

T-shirt has the famous RCA explanatory diaggram. I wish I could find somewhere that could do T-shirts properly - i.e. ones that last more than two washes

7N7

[jackinnj]

the most famous 813 application was in the AN/ART13 Transmitter -- a beast manufactured by Collins for military aircraft use until (I believe) 1953. This is still a coveted item because of the quality of the construction, stability of VFO etc.<p> Every once in a while you'll see them on EBay.

[dhaen]

Bas,

There's hardly any need to give your URL. It's first on Yahoo.

BTW (and I don't mean tax), when are you going to use the 813's that I know you have

Cheers,